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Questions tagged [ssd]

Solid-state drive refers to a data storage device that uses solid-state memory to store its persistent data.

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"Raid 0 SAS" versus "2nd generation SSD"

i was planning to buy a SAS system made of two 15k RPM disks in Raid 0 configuration to give a boost to my s.o. and my apps... but after i saw that article on Coding Horror, i've started to thinking if a new 2nd generation SSD could do the same job,…
Stefano
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How can SSD write performance be dramatically different on two identical servers?

I am renting two identical physical servers (at Serverloft). These servers come with 2x512 GB SSD disks, and I've set them up with mdadm in a RAID1. The disks are locally installed in the server. The write performance on these two systems seem to…
sbrattla
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RAID5 array over-provisioning by creating smaller array?

I did actually read the following thread: How to over-provision an Intel SSD RAID Array via the Dell H700 PERC RAID Controller It did give much information, however not an answer to my question in specific. For example; I have 6x 250 GB SSD's in…
HHawk
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SSD fstrim on CentOS 6.x with software raid5

I have some CentOS 6.x servers. They have software raid1 and fstrim works well there. On one of the servers, I decided to do software raid5 and ext4. I can mount it with discard and there is no error message. However if I decide to run fstrim, I get…
Nick
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TRIM Support in PERC H310 Mini

I am running Debian 8 on a Dell PowerEdge R420. The OS is installed onto a INTEL SSDSC2BA800G3T SSD running the 5DV1DL03 firmware. The SSD is connected through a PERC - H310 RAID controller (fw 2.121.14-3811). There is no RAID configured, the SSD…
rasebo
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Does the max-80%-use target suggested for ZFS for performance reasons apply to SSD-backed pools?

The Solaris ZFS Best Practices Guide recommends keeping ZFS pool utilization below 80% for best performance: Keep pool space under 80% utilization to maintain pool performance. Currently, pool performance can degrade when a pool is very full and…
user
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Hyper-V Cluster on SAN + SSD Local Storage

I wanted to know if there are any methods that anyone has done with the following: All of my servers on the hyper-v cluster are stored on the SANS. I have a desire to have the speed of SSD on two of these guest servers, and I have a local blank SSD…
billsecond
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Is it really necessary to use fstrim on Samsung SM843T SSDs?

Should we schedule periodical fstrims on Samsung SSD drives? What happens if we don't run such periodical scripts? I am highlighting the model on the Title because I am assuming that the answer is model/manufacturer specific. What we are using: 2…
King Claudius
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LSI 9207-8i and Samsung 850 PRO TRIM support

A Dell R610 server with LSI 9207-8i HBA card has 6 Samsung 850 PRO SSDs connected to it. hdparm shows TRIM support: sudo hdparm -I /dev/sdc | grep -i trim * Data Set Management TRIM supported (limit 8 blocks) However executing the…
A.Jesin
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Force PCIe SSD to be /dev/sdb on linux install

Is there any options to force the PCIe SSD during install to be not /dev/sda? I was hoping to reserve the SSD to be limited to be only /var but the grub loader fails each time when I try to set the bootable partition to be /dev/sdc2 (sdb is usb…
Alan
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ProLiant SE316M1 + Intel S3500 SSD + Smart Array P410 512MB. Battery (BBWC) needed?

I'm looking to replace our SQL Server: HP Proliant DL360 G4 2x 64-bit Intel Xeon 3.60 GHz, 1M Cache, 800 MHz FSB 4GB RAM DDR2 HP Smart Array 6i 2x 146GB SCSI 15K (RAID 1) With this: HP ProLiant SE316M1 2x Intel Xeon L5520 (8M Cache,…
It1
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Poor SSD I/O performance with rTorrent and Debian

I'm using a Dell PowerEdge R210 II server with Intel Xeon E3-1230, 32GB RAM DDR3, 2 x 480 GB SSDs SATA3, 2 x 1 Gbit network connection. I'm using both network connections at the same time (802.3ad bond). The problem is... I get poor IO performance…
RazvanR104
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Low SSD mdadm raid0 performance

I have got ubuntu server 12.04 with software raid0 intel sata3 ssd(2*480GB). raid is used for postgresql database. There is 51% of raid space is free. After postgres shutdown, "dd" command shows performance about 10mb/sec. uptime is 2 weeks. after…
user1941407
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HP Server Gen8 Mixed RAID and/or Pass Through

I'm considering several HP Gen8 Server models (e.g. DL*e series) for use with WS12R2E. For us, cost savings using a mix of SSD/HDD will likely better serve our needs than purchasing SAS drives. I would like to use one (or RAID1 two smaller) SSD…
khargoosh
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SMART attribute 231 mystery: Mushkin SSD

Following from this question: How do I convince smartmontools that my SSD is not a hard drive? ... I now have the Mushkin MKNSSDCR120GB-MX's SMART attributes reading as "SandForce Driven SSDs". However I am still getting weird values from SMART…
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